Transmitting signals in a medical imaging system

Abstract

Apparatuses and a method are provided for transmitting signals in a medical imaging system. The method includes transmitting signals wirelessly between at least one receive facility and a facility of the imaging system via a radio network.

The invention claimed is: 
     
       1. A method for transmitting signals in a medical imaging system, the method comprising:
 transmitting a first signal between at least one receiver and an imaging system device, the first signal being a command signal; and 
 transmitting a second signal between the at least one receiver and the imaging system device, 
 wherein transmitting the command signal and the second signal takes place wirelessly via a radio network within a B0 field generated by the medical imaging system, and 
 wherein the B0 field has a field strength of greater than 0.2 Tesla. 
 
     
     
       2. The method of  claim 1 , wherein transmitting the command signal and the second signal comprises transmitting the command signal and the second signal wirelessly via a radio network in the form of a WLAN. 
     
     
       3. The method of  claim 2 , wherein the WLAN has an overall bandwidth available of 6.75 GBit/second, a frequency of 60 GHz, or a combination thereof. 
     
     
       4. The method of  claim 2 , wherein the WLAN uses local legal frequency bands by a channel management. 
     
     
       5. The method of  claim 2 , wherein the WLAN uses IEEE 802.11ac or IEEE 802.11ad. 
     
     
       6. The method of  claim 1 , wherein the medical imaging system comprises a magnetic resonance tomography system, and the at least one receiver comprises at least one antenna of a local coil. 
     
     
       7. The method of  claim 1 , wherein the medical imaging system comprises a computer tomography (CT) device, an x-ray device, or a PET scanner. 
     
     
       8. The method of  claim 1 , further comprising:
 receiving, by the at least one receiver, signals coming from a patient; and 
 amplifying, analog-digital converting, or amplifying and analog-digital converting the received signals prior to sending the signal to an image processing unit of a magnetic resonance tomography system via a WLAN. 
 
     
     
       9. The method of  claim 8 , wherein transmitting the first and second signals takes place during, after, or during and after a receive time frame of an analog-digital (AD) converter. 
     
     
       10. The method of  claim 1 , wherein the radio network transmits signals bidirectionally between a local coil and an image processing unit. 
     
     
       11. The method of  claim 1 , wherein the radio network transmits signals from a controller to a local coil, the signals triggering the local coil to deactivate, detune, to send signals, to switch on an energy-saving mode on at least one antenna, receive modules of the local coil, or the at least one antenna and the receive modules, or any combination thereof. 
     
     
       12. The method of  claim 1 , wherein in a magnetic resonance tomography (MRT) transmit path of a magnetic resonance tomography system, the radio network transmits signals from a controller to a local coil, the signals triggering the local coil to send RF signals defined by the signals. 
     
     
       13. The method of  claim 1 , wherein an overall bandwidth of the radio network available at a time instant for transmission of signals is less than all coil segments, antennas, or coil segments and antennas of a local coil. 
     
     
       14. The method of  claim 1 , wherein transmitting the first and second signal takes place through the radio network within a shielded chamber of a magnetic resonance tomography system. 
     
     
       15. The method of  claim 1 , wherein transmitting the first and second signals is via directed or undirected free field transmission or guided waves. 
     
     
       16. The method of  claim 1 , wherein the command signal contains an identification of connected antennas, usable antennas, or connected and useable antennas. 
     
     
       17. The method of  claim 1 , wherein the command signal and the second signal contain data that specifies whether a local coil is disposed on an MRT couch, on a patient, on the MRT couch and on the patient, or at another location. 
     
     
       18. The method of  claim 1 , further comprising:
 detuning a local coil or an element of the local coil based on the command signal. 
 
     
     
       19. A medical imaging system comprising:
 a local coil; and 
 an imaging processor configured to:
 transmit a command signal to the local coil wirelessly via a radio network and within a B0 field generated by the medical imaging system; and 
 receive a signal from the local coil wirelessly via the radio network within the B0 field, 
 
 wherein the B0 field has a field strength of greater than 0.2 Tesla. 
 
     
     
       20. The medical imaging system of  claim 19 , wherein the radio network is a WLAN.